Container ring and cover



Dec. 12, 1933. 5, L BUSCHMAN ET AL l 1,939,335

Filed May 8, 1931 wg a ,45 H PKI/Y if u f ffm 1N i ATTQgNQ Patented Dec. 12, 1933 PATENT OFFICE CONTAINER RING AND COVER Sol L. Buschman, New York, and Arthur G. Hopkins, Queens County, N. Y., assignors to Metal Package Corporation, New York, N. Y., a corporation of Delaware Application May 8, 1931. Serial No. 535,942

2 Claims.

This invention relates to improvements in container rings and covers.

It is a primary object of the invention to provide an improved container ring and cover which permit liquids or other substances to be retained in a completely sealed container until the container has been opened to remove a part of the contents thereof and which may thereafter be effectively sealed repeatedly to prevent the evaporation of or damage to the contents of the container.

The above and other objects will appear more fully from the following description when con'- sidered in connection with the drawing in which:

Fig. 1 is a vertical sectional view through a container and cover constructed in accordance with the present invention.

Fig. 2 is a plan view thereof.

Figs. 3, 4 and 5 are enlarged detailed cross sectional views showing the method of sealing the interior of the container.

Figs. 6 and 7 are cross sectional views illustrating a slightly modied form of the invention. Referring to the details of the drawing, we have shown in Fig. 1 a container 10 formed with a side wall 12 and a lower end wall or closure 14. These walls are of any suitable or desired construction and specifically form no part of our present invention.

The upper wall of the container includes a ring 16 and a cover 18. The ring 16 is attached to the side wall 12 by means of the seam 20, the ring extending inwardly from the seam and being formed with an upstanding bead 22 and an annular cylindrical wall 24. The wall 24 extends downwardly from said bead 22 and terminates in a depressed bend or pocket 26 the material of the ring being continued to form an upstanding or outwardly extending bead 27. From the bead 27 the material of the ring extends downwardly or inwardly to and is continued in a sealing plate 28 extending across the interior of the ring inwardly of the bead 27. The material of the ring is provided with a weakening score 30 at the outer edge of the sealing plate 28 and adjacent the base of the bead 27, the purpose of the score being to facilitate the removal of the plate 28 to permit access to the contents of the container when such contents are to be used.

The cap or cover 18 is formed with an outwardly projecting lip 32, a cylindrical supporting portion 33, a downwardly extending bead 34 and a reversely bent upwardly projecting bead 35 and the main closure portion 36 extending across the inner face of the cover.

For the purpose of more perfectly sealing the interior of the container against leaking or against the admission of outside air, we provide a body of sealing material on either the ring or the cover, or on both, if desired. This sealing material may be poured in the form of a liquid into the pocket or trough 26 in the ring asY indicated at 38. The material is then allowed to solidify after which it will remain in the pocket even though the container body is moved or turned at various angles. When the cover 18 is thereafter inserted in place and pressed entirely down, as shown in Fig. 4, the projecting bead 34 engages the sealing material 38 and produces an air-tight seal around the can. Since the material is of a resilient structure, the container may be closed and unclosed repeatedly and each time be eifectively sealed at the body of material v38 in the pocket 26.

A similar result may be attained by providing a sealing material 39 poured into the depression 35, the cover being inverted to permit the sealing compound to be poured into the circular pocket 35. After the material has solidified or hardened sufciently the cover may be placed in its normal position and when the cover is inverted and placed on the container the material 39 will effectively seal the interior of the same. Obviously, if desired, both the sealing materials 38 and 39 may be employed in order to stillmore effectively seal the interior of the container. This condition is shown in Fig. '7 referred to below.

In Figs. 6 and 'I the ring 16a is constructed similarly to the ring 16 described above except that an additional upwardly projecting bead 4l) is provided on the closure plate 28a, the bead 40 giving stability to the plate when it is being removed from the ring. The removal of the plate 28a is facilitated by the weakening score 30a placed at tne bottom of the depressed pocket 42 which extends between the upwardly projecting beads 27a and 40.

In Fig. 6 the sealing material 38 is shown in position to be engaged by the lower projecting bead on the cover. In Fig. 7 the sealing material is shown at 38 and also at 39 to provide the double seal wherein one body of sealing material is placed in a pocket in the ring and the other body is placed in the circular pocket in the cover, the latter being inverted for this purpose.

In the use of this apparatus the container as originally supplied is provided with the closed ring 16 or 16a which entirely seals the interior of the container. At this time the sealing effect of the cover 18 is not required. When the contents of the container are to be used, the metal 'is cut along the score 30 or 30a and the central portion or plate of the ring is removed so as to give access to the container. Thereafter the cover is placed with the cylindrical portion 33 thereof engaged with the corresponding cylindrical portion 24 of the ring and the cover is pressed downwardly until the bead 34 engages the sealing material 38 and until the bead 27 engages the sealing material 39 (if employed) thus effectively sealing the interior of the container. The projecting lip 32 formed on the cover facilitates the removal of the closure from the container body. The cylindrical anged portions of the cover and ring form a relatively secure attachment for the cover and cooperate with the sealing compound to produce an effective and tightseal for the interior of the container.

Having now described our invention, we claim:

1. A container of the character described comprising, in combination, a cylindrical body having a normally open top, a unitarily formed head closing the normally open top of the body and comprising an outer peripheral or rim portion engaging the upper rim edge of the body, an inner removable circular sealing plate portion lying in a plane below the rim portion, an intermediate annular vertical wall and depressed gutter shaped portions at different levels disposed respectively between the upper edge of the vertical wall and the rim portion and the lower edge of the vertical wall and the plate portion, the head being further provided between the upper gutter shaped portion and the upper edge of the vertical wall and between the lower gutter shaped portion and the lower edge of the wall with inverted V-shaped beads whose sides converge to peaks at the inner sides of the said gutter shaped portions, the plate being partially separated from the lower gutter shaped portion by a weakened separating area, and a cover having a vertical cylindrical wall portion to t down within the cylindrical wall portion o! the head, a portion to close the opening in the head when the sealing plate vis removed, and portions to overlie the gutter shaped portions of the head.

2. A container of the character described comprising, in combination, a cylindrical body having a normally open top, a unitarily formed head closing the normally open top of the body and comprising anouter peripheral or rim portion engaging the upper rim edge of the body, an inner removable circular sealing plate portion lying in a plane below the rim portion, anintermediate annular vertical wall and depressed gutter shaped portions at different levels disposed respectively between the upper edge of the vertical wall and the rim portion and the lower edge of the vertical wall and the plate portion, the head being further provided between the upper gutter shaped portion and the upper edge of the vertical wall and between the lower gutter shaped portion and the lower edge of the wall with inverted V-shaped beads whose sides converge to peaks at the inner sides of the said gutter shaped portions, the plate being partially separated from the lower gutter shaped portion by a weakened separating area, and a cover having a cylindrical vertical wall to fit down within the cylindrical wall of the head, a depressed closure plate to close the opening in the head formed therein on removal of the sealing plate, a flange at the upper end of its cylindrical wall to overhang the upper gutter shaped portion of the head, an inverted gutter shaped portion between its vertical wall and closure plate to overlie the lower bead of the head, and a V-shaped bead between its said vertical wall and its said inverted gutter shaped portion to extend downwardly into the lower gutter shaped portion o! the head.

SOL L. BUSCHMAN. ARTHUR G. HOPKINS. 

